Rollout On Knees muscles:Deltoids, Rectus Abdominis, Lower Back auxiliary muscles:Latissimus Dorsi, Trapezius, Pectoralis Major, Obliques, Serratus Anterior, Teres Muscles, Quadriceps required:EZ Bar / Dumbbells (2) / Barbell optional:Fitness Mat fitness level:Hard exercise type:Strength exercise benefits and how to do Rollout On Knees